Being one of the most frequently killed raptors by collision with wind turbines, little is known about the Griffon vulture’s flight strategies and behaviour in a fine scale. In this study, we used high-resolution tracking data to differentiate between the most frequently observed flight types of the Griffon, and evaluated the performance of our proposed approach by an independent observation during a period of 4 weeks of fieldwork. Five passive flight types including three types of soaring and two types of gliding were discriminated using the patterns of measured GPS locations. Of all flight patterns, gliding was classified precisely (precision = 88%), followed by linear and thermal soaring with precision of 83 and 75%, respectively. The overall accuracy of our classification was 70%. Our study contributes a baseline technique using high-resolution tracking data for the classification of flight types, and is one step forward towards the collision management of this species.

中文翻译：

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使用高分辨率跟踪数据识别格里芬秃鹰的飞行类型

作为最常因与风力涡轮机碰撞而丧生的猛禽之一，人们对格里芬秃鹫的飞行策略和行为知之甚少。在这项研究中，我们使用高分辨率跟踪数据来区分最常观察到的 Griffon 飞行类型，并在 4 周的实地考察期间通过独立观察评估我们提出的方法的性能。使用测量的 GPS 位置模式区分五种被动飞行类型，包括三种翱翔和两种滑翔。在所有飞行模式中，滑翔被精确分类（精度 = 88%），其次是线性和热腾飞，精度分别为 83% 和 75%。我们分类的总体准确率为 70%。